Graphics Examples:

// Program 2


void main()
{
int x1,x2,y1,y2,x1i,x2i,y1i,y2i;
int count;
//first line starts at:
x1=20;
y1=20;

//first line stops at:
y2=400;
x2=400;

//starts change by
x1i=14;
y1i=2;

//stops change by
y2i=-12;
x2i=-15;

count=0;

while(count<20)
  {
   moveto(x1,y1);
   lineto(x2,y2);
   x1=x1+x1i;
   y1=y1+y1i;
   x2=x2+x2i;
   y2=y2+y2i;

    count=count+1;
    }



}







//-------------------------------------------------


// Program 3:  Graphic Function



void DrawShape(int x, int y, int size)
{
 int scale;
 scale=size*0.1;
 circle(x,y,size);
 moveto(x-size,y-size);
 lineto(x+(scale*4),y+(scale*4));
 rectangle(x,y,x+size,y+size);
}

void main()
{
DrawShape(30,30,20);
DrawShape(80,100,40);
DrawShape(230,170,70);
DrawShape(150,60,30);
}




//--------------------------------------------------------------------------------



// Program 4

void striangle(int x1, int y1, int x2, int y2, int x3, int y3, int level)
{
moveto(x1,y1);
lineto(x2,y2);
lineto(x3,y3);
lineto(x1,y1);
if(level<1) return;

striangle(x1,y1,((x1)+x2)/2,((y1)+y2)/2,((x1)+x3)/2,((y1)+y3)/2,level-1);
striangle(x2,y2,(x2+x1)/2,(y2+y1)/2,(x2+x3)/2,(y2+y3)/2,level-1);
striangle(x3,y3,(x3+x1)/2,(y3+y1)/2,(x3+x2)/2,(y3+y2)/2,level-1);



}

void main()
{


striangle(300,5,20,305,580,305,6);



}